/**
 * Author:   e20160504
 * Date:     2018/7/9 13:12
 * Description:
 */
package com.kevin.demo.utils;

import javax.servlet.http.HttpServletRequest;

public class SysUtil {

    public static String getClientIp(HttpServletRequest request){
        String ip = request.getHeader("x-forwarded-for");
        if (ip==null||ip.length()==0||"unknown".equalsIgnoreCase(ip)) {
            ip = request.getHeader("Proxy-Client-IP");
        }
        if (ip==null||ip.length()==0||"unknown".equalsIgnoreCase(ip)) {
            ip = request.getHeader("WL-Proxy-Client-IP");
        }
        if (ip==null||ip.length()==0||"unknown".equalsIgnoreCase(ip)) {
            ip = request.getRemoteAddr();
        }
        return ip;

    }
}
